condition	mean	min	max
4 h after light	5.0884149999999995	5.05575	5.12108
8 h after light	4.655215	4.57459	4.73584
12 h after light	5.887980000000001	5.83514	5.94082
4 h after dark	5.3490850000000005	5.10585	5.59232
8 h after dark	5.7010000000000005	5.26864	6.13336
12 h after dark	5.587205	5.56218	5.61223